It has been said [by Anatole France], "it is not by amusing oneself that one learns," and,

It has been said [by Anatole France], "it is not by amusing oneself
that one learns," and, in reply: "it is *____only* by amusing oneself that
one can learn."
-- Edward Kasner and James R. Newman

Related:

• It has been said [by Anatole France], "it is not by amusing oneself that one learns," and,
  in reply: "it is *____only* by amusing oneself...
• It's not by amusing oneself that one learns. -- Anatole France (1844-1924) It's only by amusing oneself that one can learn.
  Edward Kasner and James R....
• There is a certain impertinence in allowing oneself to be burned for an opinion.
  Anatole...
• There is a certain impertinence in allowing oneself to be burned for an opinion.
  Anatole...
• There is a certain impertinence in allowing oneself to be burned for an opinion.
  Anatole...
• There is a certain impertinence in allowing oneself to be burned for an opinion.
  Anatole...
• There is a certain impertinence in allowing oneself to be burned for an opinion.
  Anatole...
• Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing in itself.
  James A. Froude (1818...
• Society's external rewards are no measure of true success.
  True success can be measured only in relation to the...